Dump body



Nov. 17, 1931. R. E. SMITH ET AL DUMP BODY Filed May 9, 1927 4 Sheets-Sheet 1 Hqf/ INVENTOR3 RALPH E.SMITH. Rev JIARNOLD,

A TTOR'NE Ya Nov. 17, 1931. R. E. SMITH ET AL 1,832,513

DUMP BODY Filed May 9. 1927 4 Sheets-Sheet 2 ,z0 0a a ZO'i lo A M I O /9 6 2/ w 5 24 Z Z3 oo O JNVENTORS RALPH E. SMITH, ROY JARNOLD,

A TTOR/i E rs Nov. 17, 1931.

R. E. SMITH ET AL DUMP BODY Filed May 9, 1927 4 Sheets-Sheet 3 [N VENTORS RALPH E. SMn' ROY JARNOLD,

B Y RALPH O. CuRFMnN WORNE Y5 Patented Nov. 17, 1931 UNITED STATES.

PATENT OFFICE RALPH E. SMITH, BOY T. ARNOLD, AND RALPH O. GUBFMAN, OF GALION, OHIO, AS- SIGNORS TO THE GALION METALLIC VAULT COMPANY, OF GALION, OHIO, A. COR- PORATION OF OHIO DUMP BODY Application filed May 9, 1927. Serial No. 190,091.

Our invention relates to dump bodies and mechanism for operating the dump bodies.

It is the object of our invention to provide an elevating mechanism for dump bodies which will telescope beneath the dump body- Fig. 2 is a section on the'line 22 of Fig. 3;

Fig. 3 is a section on the line 3-3 of Fig. f I r Fig, 4 is a section on the line 4l4 of Fig. 3;

Fig. 5 is a side elevation of the mechanism in elevated position; 7

Fig. 6 is a top plan view of the flexible elevating element;

Fig. 7 is a side elevation thereof;

Fig. 8 is a bottom plan view thereof;

Fig. 9 is a section on the line 99 of Fig. 3.

Referring to the drawings in detail, 1 and 2 indicate side rails of a truck frame joined by the transverse member 3. The sideframe members are further joined by the transverse member 4. The two transverse members?) and at are joined together by the spaced parallel braces 5 and 6 which are parallel to the side frame members 1 and 2 and spaced therefrom. The side frame member 1 carries a shaft 7 on which is mounted a handle 8. This side shaft 7 actuates a bevel gear 9 which in turn actuates a bevel gear 10 mounted on a jack shaft 11. This jack shaft 11 is provided with a worm 12 meshing with the worm gear 13 mounted on the shaft 1 1 which is journaled at 15 on the side frame 1, at 16 on the brace member 5 and at 17 on the brace member 6. The shaft 14 has mounted thereon a pair of spaced sprocket wheels 18 and 19. These sprocket wheels are adapted to travel within a guide housing which is arcuate in shape, designated 20, and 20a, having a guiding surface 21. The sprocket wheels are spaced from this guide housing. Between the guide housing and the sprocket wheels and engaging the sprocket wheels is a roller chain constructed as follows. The links consist of a plate portion designated 22 having side walls 23 which project inwardly and forwardly beyond the plate 22 in the form of arms 24, such arms terminating in laterally disposed bearings 25. These bearings do not meet but are spaced apart to provide a spaoe'for the rotation of the roller 26 which is mounted on the shaft 27. This shaft 27 passes through the bearings and through the next adjacent side walls 23 and serves as a connecting member for connecting each link to the other. Projections 28 and the sides of the plate 22 provide guards and guiding surfaces to laterally position the chain. These side walls 23 are provided with side apertures 29 to lighten the weight thereof and are also provided with upwardly extending lugs 30 at either end adjacent similar lugs on the next adjacent link thereby providing broad bearing surfaces 31 which engageand hold the links when in vertical position as a stiff supporting member. This chain travels in an inclined trough 32 prior to entering the guide 20 beneath the sprocket wheels 18 and 19. The forward end of the chain is connected to a special form of link formed like the other links save that it has an arm 33 extending at right angles to the fore and aft axis of the link. This arm is pivoted at 34 to the bottom of the dump body 85. The dump body itself is provided with side brackets 36 which are pivoted at 37 on the side frame members 1 and 2 in-the usual manner. The usual tail gate 38 is provided of any desired form or shape.

Method of operation \Vhen the parts are as shown in Figs. 1, 2 and 4, the roller chain is resting in its guide way 32 with its forward end beneath the sprocket wheels 18 and 19 and its rollers resting on the arcuate guide face 21 of the guide 20. By the actuation of the handle 8 the power is applied through the shaft '7, gears 9 and 10, shaft 11, gears 12 and '13, and shaft M to the sprocket wheels 18 and 19. The teeth of the sprocket whee-ls engage with the exterior of the bearings 25 moving the chain on its rollers along the guide way and arcuate guiding surface 21 pushing the chain upwardly and in doing so the body 35 is pushed upwardly as the surfaces 31 engage each other forming a stiff body for thrusting the forward end of the dump body upwardly. Any tendency of the chain to sag and to be come flexible again is resisted by the meeting of these faces 31 and the tendency of the chain to move into such engaging position due to the fact that as the body rises the pivotal point 3st travels backwardly with respect to the teeth of the sprocket wheels so that any sagging of the chain will cause the faces 31 to engage and the chain will remain a stiff member. The thrust upwardly is taken through the chain.

' It 'ill be understood that We desire to comprehend within our invention such modifications as may-be necessary to adapt it to vary ing conditions and uses.

The block 20a which rocks upon the top of the guide 20 forms a yielding chain guide. It is held in position by the side plate 20?) and the spring 200, which spring is maintained in position by the bracket 20d.

Having thus fully described our invention, what we claim as new and desire to secure by Letters Patentis 1. In combination, a vehicle frame, a body pivoted thereon, an actuating means consisting of a pair of spaced sprockets, a single elevating means flexible in one direction and inflexible in the other direction engaging at opposite points with said actuating means adapted to 'be telescopically lo ated between the frame and body in inoperative position and to assume a rigid shape when it passes into operative position between the actuating means and the body which is elevated thereby, an arcuate guide for guiding said elevating means adjacent the actuating means and a storage trough for receiving said elevating means in its telescopic position, said trough being tilted from the rear of the body forwardly for delivering the elevating means to the actuating means.

In combination. a vpivoted body, an actuating means consisting of a pair of spaced sprockets, a single roller chain engaging at opposite points with the actuating means, free at one end and connected at the other end to the dump body to elevate it, said chain being so arranged that it is flexible in one direction and inflexible in the other, whereby when it is actuated and moved upwardly to elevate the body it becomes a still inflexible member while when it is lowered and passes into inoperative position it is flexible.

3. In combination, a pivoted body, an actuating means consisting of a pair of spaced sprockets, a single roller chain engaging at opposite points with the actuating means, free at one end and connected at the other end to the dump body to elevate it, said chain being so arranged that it is flexible in one direction and inflexible in the other, whereby when it is actuated and moved upwardly to elevate the body it becomes a still inflexible member while when it is lowered and passes into inoperative position it is flexible, and guide members for guiding said roller chain around the actuating means and beneath the body in inoperative position.

l. in combination, a frame, a body pivoted thereon, a single elevating chain, rollers mounted in said chain, said chain being composed of links having faces adapted to engage when the chain is moved in one direction to form th chain into a stiff body, said faces being cut away in another direction to permit the chain to flex in another direction, a pair of spaced sprocket wheels engaging at opposite points with the links of said chain, said dump body being pivoted to one end of said chain, the other end being free, and means to guide said chain adjacent said sprocket.

5. In combination, a frame, actuating means, a pair of spaced sprockets, an arcuate guide member located in a spaced position adjacent said sprockets, a supporting trough communicating with said guide member located in said frame, a dump body pivoted on said frame and a chain adapted to be flexible in one direction and inflexible in the other direction carrying rollers engaging with said sprockets, said trough and said guide way, the teeth of said sprockets being adapted to engage with the bearings on said chain for supporting the rollers.

6. In combination, a frame, actuating means, a pair of spaced sprockets, an arcuale guide member located in a spaced position adjacent said sprockets, a supporting trough communicating with said guide member located in said frame, a dump body pivoted on said frame and a chain adapted to be flexible in one direction and inflexible in the other direction carrying rollers engaging with said sprockets, said trough and said guide way, the teeth of said sprockets being adapted to engage with the bearings on said chain for supporting the rollers, a pivot connection between the chain and the dump body consist ing of a link with an angularly disposed arm adapted to engage with the bottom of the body when the chain is thrust upwardly by the actuating means and sprockets.

7. In combination, a frame, actuating means, a pair of spaced sprockets, an arouate guide member located in a spaced position adjacent said sprockets, a supporting trough communicating with said guide member located in said frame, a dump body pivoted on said f 'ame and a chain adapted to be flexible in one direction and inflexible in the other direction carrying 'rollers engaging with said sprockets, said trough and said guide way, the teeth of said sprockets being adapted to engage with the hearings on said chain for supporting the rollers, a pivot connection between the chain and the dump body consisting of a link with an angularly disposed arm adapted to engage with the bottom of the body when the chain is thrust upwardly by the actuating means and sprockets, and said guide way adjacent the sprockets having an upwardly extending and rearwardly directed portion for directing said chain rearwardly.

S. In combination, a truck frame, a body mounted on said frame, an actuating means for raising said body including a pair of spaced sprockets, and a chain composed of a series of roller bearing plates driven by said sprockets for elevating said body and so arranged. as to be flexible while in engagement with the actuating means and stiff while in elevated position, said sprockets engaging said plates on both sides of said rollers 9. In combination, a frame, a body pivotally mounted on said frame, an actuating means including a pair of spaced sprockets, and a link member consisting of a single unit composed of a plurality of roller carrying members actuated by said sprockets for the purpose of elevating said body, said sprockets engaging said members on both sides of said rollers.

10. In combination, a frame, a body pivotally mounted on said frame, an actuating means including a pair of spaced sprockets and an elevating means consisting of a single unit formed of a plurality of plate members having side walls pivoted together and actuated by the actuating means, flexible in one direction to permit of its actuation, and inflexible when in an elevated position, said spaced sprockets acting to engage said plate members so as to effect a direct upward movement of the elevating means.

11. In combination, a frame, a body pivotally mountedto said frame, an actuating means including a pair of spaced sprockets, an ele- 'ating means consisting of a single unit formed of a series of plate members united by roller carrying means actuated by said elevating means and attached to the body and inflexible in one direction and flexible in the other direction, said sprockets engaging the roller carrying means to effect a direct vertical movement ofthe elevating means.

. 12. In combination, a frame, a body pivotally mounted upon said frame, an actuating means consisting of a pair of spaced sprocket wheels mounted on said frame, an elevating means consisting of a single unit formed of a series of plate members actuated by said elevating means and attached to the body, said elevating means being flexible in one direction and inflexible in the other direction and so engaging the actuating means and so connected to the'body that it will tend to remain in inflexible condition between the actuating means and the body to maintain the body in elevated position.

13. In combination, a vehicle frame, a body pivoted thereon, an actuating means consisting of a pair of sprocket wheels, an elevating means flexible in one direction and inflexible in the other direction engaged by said actuating means at opposite points and adapted to be telescopically located between the frame and the body in inoperative position and to assume a rigid shape when it passes into operative position between the actuating means and the body which is elevated thereby.

14. In combination, a vehicle frame, a body pivoted thereon, a pair of sprocket actuating means, an elevating means flexible in one direction and inflexible in the other direction engaged by said actuating means at opposite points and adapted to be telescopically located between the frame and the body in inoperative position and to assume a rigid shape when it passes into operative position between the actuating means and the body which it elevates, and an arcuate guide for guiding said elevating means adjacent the actuating means.

15. In combination, a vehicle frame, a body pivoted thereon, a pair of sprocket actuating means, an elevating means consisting of a single unit flexible in one direction and inflexible in the other direction engaged by said actuating means at opposite points and adapted to be telescopically located between the frame and the body in an inoperative position and to assume a rigid shape when it passes into operative position between the actuating means and the body which is elevated thereby, an arcuate guide for guiding said elevating means adjacent the actuating means, and a storage trough for receiving said elevating means in its telescoped position.

16. In combination, a frame, a body pivoted thereto, a pair of sprocket Wheels piv otally mounted on said frame, a single roller chain engaged .at opposite points by said wheels and flexible in one direction and inflexible in the other direction, means to guidesaid chain and to support it in said frame and adjacent said sprocket wheels, means for pivotally connecting one end of said chain to said body, and means to actuate the sprocket wheels whereby the chain is flexible as it passes around the sprocket Wheels and inflexible as it moves upwardly to elevate the body.

In testimony whereof, We affix our signatures.

RALPH E. SMITH. ROY J. ARNOLD. RALPH O. CURFMAN. 

